Want your icons even bigger? Need custom resolution images? Large Commerce Icons are available in vector sources in Adobe Illustrator (AI) format for an extra free,Large Commerce Icons are supplied in resolutions of 16x16, 20x20, 24x24, 32x32, 48x48, and 256x256 pixels, with extra-large 512x512 pixel versions included as a special bonus. 256-color and semi-transparent True Color images are supplied with every order. ICO, PNG, GIF, and BMP formats are supported. All icons come in normal, disabled and highlighted states.